* Optimized validation of large lists

* New xmldb_get1() returning actual cache - not a copy. This has lead to some householding instead of just deleting the copy
  * xml_diff rewritten to work linearly instead of O(2)
  * New xml_insert function using tree search. The new code uses this in insertion xmldb_put and defaults. (Note previous xml_insert renamed to xml_wrap_all)

lib/src/clixon_json.c

@@ -915,79 +915,4 @@ json_parse_file(int        fd,
     return retval;    
 }
 
-/*
- * Turn this on to get a json parse and pretty print test program
- * Usage: json
- * read json from input
- * Example compile:
- gcc -g -o json -I. -I../clixon ./clixon_json.c -lclixon -lcligen
- * Example run:
-    echo '{"foo": -23}' | ./json
-*/
-#if 0 /* Test program */
-
-static int
-usage(char *argv0)
-{
-    fprintf(stderr, "usage:%s.\n\tInput on stdin\n", argv0);
-    exit(0);
-}
-
-int
-main(int    argc,
-     char **argv)
-{
-    cxobj *xt;
-    cxobj *xc;
-    cbuf  *cb = cbuf_new();
-    char  *buf = NULL;
-    int    i;
-    int    c;
-    int    len;
-    FILE  *f = stdin;
-    
-    if (argc != 1){
-	usage(argv[0]);
-	return 0;
-    }
-    clicon_log_init(__FILE__, LOG_INFO, CLICON_LOG_STDERR); 
-    len = 1024; /* any number is fine */
-    if ((buf = malloc(len)) == NULL){
-	perror("malloc");
-	return -1;
-    }
-    memset(buf, 0, len);
-
-    i = 0; /* position in buf */
-    while (1){ /* read the whole file */
-	if ((c =  fgetc(f)) == EOF)
-	    break;
-	if (len==i){
-	    if ((buf = realloc(buf, 2*len)) == NULL){
-		fprintf(stderr, "%s: realloc: %s\n", __FUNCTION__, strerror(errno));
-		goto done;
-	    }	    
-	    memset(buf+len, 0, len);
-	    len *= 2;
-	}
-	buf[i++] = (char)(c&0xff);
-    } /* read a line */
-
-    if (json_parse_str(buf, &xt) < 0)
-	return -1;
-    xc = NULL;
-    while ((xc = xml_child_each(xt, xc, -1)) != NULL) {
-	xmltree2cbuf(cb, xc, 0);       /* dump data structures */
-		//clicon_xml2cbuf(cb, xc, 0, 1); /* print xml */
-    }
-    fprintf(stdout, "%s", cbuf_get(cb));
-    if (xt)
-	xml_free(xt);
-    if (cb)
-	cbuf_free(cb);
- done:
-    return 0;
-}
-
-#endif /* Test program */